w w\,w is directly proportional to the square root of z z\,z
When w=35,z=25w = 35, z = 25w=35,z=25
Find the possible values of z z\,z when w=14w = 14w=14
Practise OCR GCSE Maths Direct and Inverse Proportion with exam-style questions for Foundation and Higher tier. 96 questions, matched to the OCR GCSE Maths (J560) specification and written in the written papers style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.